What’s the Difference Between Hallucinations, Delusions, and Illusions?

Dementia-related psychosis means seeing and hearing things that aren't really there. Learn more about these challenging symptoms.

It's disturbing to see your loved one talking to an empty chair, or telling you there's someone in your basement (when there's not). George Grossberg, M.D., professor and director of geriatric psychiatry at Saint Louis University School of Medicine in Missouri, explains the different ways dementia-related psychosis can interfere with a patient's perception of reality.

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